Portfolio



S.- KRAFT PORTFOLIO Nov. 5,' 1929.

Filed NOV. 28. 1927 Patented Nov. 5, 1929 l1 STEPHAN KRAFT, or VIENNA, AUsTRrA* PoRTFoLIo Application sied November 2s, 1927, sei-iai No. 236,321, ana in( Aust'ia october as, ieee.

This invention relates to portfolios and has for its object the provision of novel means by which drawings, textile fabrics and other fiat objects may be kept without creasing 5 `n proper position enclosed in a nearly dust proof casing.

Briefly stated, the portfolio of the inven tion comprises alternate stiff panels and iexible strips, a swingably mounted frame at V\ne endto start winding the article on, end pieces attached to the panels andstrips to space them apart as the portfolio 1s rolled up. This portfolio, when folded into casing form, is a flat parallelepipedal form with two )f its longitudinal surfaces covered by the flexible strips.

In the accompanying drawings:

Fig. 1 is a perspective view of the portfolio when open or unfolded.

Fig. 2 is a perspective view of the portfolio rolled up to form a case, this figure being drawn on an enlarged scale as compared with the scale of Fig. 1.

The portfolio is composed of panels 1, 2, 3 and 4 made of paper,- wood, metal or any other suitable stiff material and connected by strips 5, 6 and 7 of exible material as,for instance, cloth or leather.

In order to prevent the entry of dust and n order to space the panels 1, 2, 3 and4 apart when the portfolio is folded, end pieces 8 to 16, preferably of wood, are secured to the ends of the panels 1, 2, 3 and 4. The end pieces 8 and 16 of the panel 1 each has one end projecting beyond the free edge of said panel, and a frame 'comprising a pair of rolls of paper 17 and 18 connected at their ends by arms 19 and 2O is mounted to rock between said projecting ends.v A bolt 21 extending 4D through the projecting ends of the end pieces 8 and 16, the arms 19 and .20, and axially through the roll 17, serves to pivotally connect said frame to the end pieces 8 and 16, so that said frame may be folded against or away from the panel. The roll 17 may be fixed and the bridges 19 and 2O may turndirectly around the bolts 21 as their axes, which, in certain cases, may be shifted towards the roll 18.

To make the dust-proof closure a perfect one and to assist in holding the portfolio together when closedl tor form a case, theend pieces Sand .16 are each provided with a tongue 2 2 and the end pieces 9 and 15 are each providedr with a corresponding groove 23` the respective tongues and grooves engaging with f each other4 when the portfolio isclosed. VAlso at` the free. edges -of the flexible strips Gand 7, fiexible end pieces24-27, made, for lin- Y stance, of felt or the like, are mounted, close-l ly fitting tothe end pieces 8,9, 15 and' 16 when the portfolio is closed. v f

The portfolio consists at least,y of'three parts vto produce a proper casing, and tok facilitate the safe retention of large. drawings','and the lil je at oneand the same time,

the present arrangement-effecting economy in storage. If the portfolio is made of canvas, leather, or the. like,it is v. necessaryV to' construct the panels 3 and 4 of a stiff material,

so that 4the port folio, when closed to form a case, will retain its box'like shape. Y

In order to make use of the portfolio'for inclosing and holdingdrawings or other flat objects, it is opened and spread over a table and one end of the drawings is inserted under the swingably mounted frame, which frame is previously lifted to a certain angle and then restored to its original position. The portfolio with the drawings isv then wound on from the right to the left, as viewed in Fig. 1,

beginning with the frame as the innermost part or core, the lastpanel 4 and opposite panel 3 finally forming'the flat portions of the cover while the approximately semioylindrical parts are formed by the fiexible strips. The ends are closed by the end pieces enand grooves.

gaging with each other through their tongues What I claim is: 1. A portfolio comprising a flexible wrapping member composed of alternate plane stiif and flexible sections, means carried by one of the end sections for securing thereto an end of the object to be encased and also serving asa support for said object to be wound 'within the wrapping member, and cooperating members carried by certain of the sections for clos when folded.

ing thefends of the portfolio VIt() 25j p f, Y '1,734,863

2. A portfolio according to claim 1, wherein the article-securing means carried by one of the end sections includes means forming a core on which the wrapping member andthe article carried thereby may be wound.

3. A portfolio according to claiml wherein said object-securing means is composed of two spaced longitudinal members and two bridges connecting'said members, said means being mounted to swing on :an eaxis c oaXiall-y with one of said members. v c

' 4. A portfolio according to claim 1 f which the end members comprise rigid pieces attached t-o 'the stiff sections and flexible pieces attached to the .flexible sections.

5. AV portfolio according to claim '1 in which the end members include rigid pieces n provided with vcomplementary tongues and grooves to form a tight joint when the portfolio is closed.V I

'6; Aportfolio comprising a covering member composed of alternate stif'and flexible panels, and a frame attached to one end of the covering member and foldable inwardly and upon which the covering member may be wound, said frame consisting of two spaced round members and two arms connecting one member to the other, said arms being connectedl to the ,covering member to permit the frame to be swung'relatively to the covering member, rigid end pieces attached tothe sti panels and flexible end pieces attached to the flexible panels, and complementary interengaging means carried by the rigid end i pieces.

In testimony whereof have hereunto .set

my hand..

v STEPHAN KRAFT. 

